Make them your slaves.

Mind made up, you recline at the poolside. You've always admired Jim's big house, with its spacious backyard and luxurious pool and jacuzzi. Maybe when he's done working your shift, you'll have him sign it over to you. You're such a considerate guy that you'll even let him move into your old place instead. The house switch will definitely involve you keeping the girls, though. Naturally, neither party would have any problem with that.

Tiffany is smearing sunscreen on your naked chest while Veronica kneels beside you with a refreshing drink that she raises for you to sip whenever you want. Both of them are just as happy as can be. Tiffany is telling you about her plans for her fall semester at BMU. "I know it's a pretty heavy course load, but my adviser says she's really confident that I can handle it. She says she's never seen anyone just breeze through the program the way I have."

"Uh-huh, yeah, great," you say, feigning interest and ready to move onto the real matter at hand. "Hey, would you girls mind taking your tops off? I'm really curious which one of you has the better rack."

Veronica and Tiffany exchange curious glances for a moment before shrugging with a smile. "Sure thing," Veronica agrees as she pulls her thin white tee over her shoulders and sends it sailing away with the wind. Her sizable breasts jiggle slightly as they come to their natural state, Veronica giggling as she puts her hand under them and cups them. "Pretty good question, John."

"Ugh, Veronica, your tits are so much nicer," Tiffany says with certainty, unbuttoning her blouse and casually throwing it away. "See how much plumper and firmer hers are? I mean, I like my boobs, but I really can't compete against my little sister."

"I think that's up to me to decide, really," you say, squeezing Veronica's bouncing D cups with one hand while fondling Tiffany's more delicate Bs with the other.

"Look at you, hotshot," Veronica comments with a giggle. "Touching our tits without even asking."

"Well, I didn't ask because I didn't think I needed your permission or opinion. After all, everything makes a lot more sense when I'm charge and doing all the thinking for you both, wouldn't you agree? Why bother worrying about decisions and choices when you could have me do it for you, y'know?"

"That's such a great idea!" Veronica agrees happily. "How come we didn't think of that, Tiffany?"

"Because we're not as good at making decisions as John is," Tiffany replies. "That's exactly why he's in charge of everything. It also must be why we have no problems accepting it."

"Of course, of course," Veronica calmly says as you squeeze her breasts a bit more.

"I wonder how I'll handle my fall classes if he's not always around to make up my mind about everything, though..." Tiffany adds on, worry treading in her voice.

"Honestly, you probably shouldn't even bother with classes anymore," you suggest, sipping from the drink Veronica holds for you. "All that school is just going to take away from the time you could spend here. It's probably easier if you just forget everything you learned as fast as possible, since it's not going to matter anymore."

"You're right! I feel so much better already not having to think about all that stuff," Tiffany says instantly, her worry rapidly shifting into relief. "Wow, yeah, it's like, why was I working so hard when all that really matters is doing what you say? Geez, I've been really dumb."

"That's all right," you say with a small laugh. "You probably shouldn't be too smart anyway. How about you just flounce around and act like a giggly floozy from now on?"

"Oh my god, yes! Another great idea from the wonderful John," Tiffany says, giggling. "Gee, you're so smart."

You chuckle. "Now that you mention it, though, I think your tits are much too small. I'm sure I could get you some free implants that would make them a lot closer to your sister's. Also, if you started dying your hair blonde like your sister, that would look a lot better. Veronica thinks so too, right?"

"Totally," Veronica says. "Once Tiff is a big-titted blonde like me, we'll match. I know it must be a smart idea because John said it."

"Uh-huh. As long as we're on the subject, sweet cheeks, forget about all that music stuff, okay? From now on just be giggly, dumb, and girly like your sister. I'll get some implants for you too. You're pretty big already, but I don't like to settle for less and you'll look much better with them."

As Veronica nods happily and giggles with her sister about their newfound roles, something keeps nagging at you. There's something more you could do with this...and you quickly remember.

"I almost forgot the most important part," you add on, bringing the bimbos-in-the-making back to attention. "Both of you should be horny all the time. Since you're not going to be thinking about your education or careers, you'll have a lot more time to think about me fucking your brains out whenever I want."

"Ooooh yeah!" both of them exclaim. Without instruction, they strip off the rest of their clothes and start rubbing their hot naked bodies with their hands, so overwhelmed with sexual desire that they can't help it. They even tread into each other's territories, fingering one another feverishly while staring at you with lust burning in their eyes.

Well, that was easy, you think to yourself. In just a couple of minutes, you turned two MENSA-level prodigies into complete airheads and convinced them to become your busty, submissive sex slaves. Of course, you could always turn them back anytime you wanted...but why? How would that profit you? From now on, your every lascivious wish and selfish desire can be yours whenever you want it. Why hold back? Why not exploit everyone and everything? What else is power for?